Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/16277#discussion_r92331760
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/trees/TreeNode.scala
---
@@ -557,9 +562,10 @@ abstract class TreeNode[BaseType <:
TreeNode[BaseType]] extends Product {
}
if (children.nonEmpty) {
- children.init.foreach(
- _.generateTreeString(depth + 1, lastChildren :+ false, builder,
verbose, prefix))
- children.last.generateTreeString(depth + 1, lastChildren :+ true,
builder, verbose, prefix)
+ children.init.foreach(_.generateTreeString(
--- End diff --
i re-arranged this so it looks exactly the same as the way we traverse
innerChildren to make it more obvious.
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